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$127+ Cheap flights from Trenton, NJ to San Francisco (TTN - SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SFO
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Trenton to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$167
(CheapOair)

One-way from

$127
(CheapOair)

Popular in

December

Cheapest in

February

Average price

$397
From Trenton-Mercer to San Francisco
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One-way flight from Trenton-Mercer to San Francisco
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Highest demand for flights based on searches. 7% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Trenton to San Francisco

Cheapest flights from Trenton to San Francisco
Explore the most affordable flight options available from Trenton to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:30 pmTTN - SFO
1 stop11h 51mFrontier
Sun 10/511:00 pmSFO - TTN
1 stop9h 34mFrontier
Deal found 9/15$167
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:30 amTTN - SFO
2 stops29h 47mFrontier
Thu 10/26:29 amSFO - TTN
2 stops26h 05mFrontier
Deal found 9/14$243
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:30 pmTTN - SFO
1 stop11h 51mFrontier
Sun 9/2811:00 pmSFO - TTN
1 stop9h 34mFrontier
Deal found 9/15$265
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:30 amTTN - SFO
2 stops29h 47mFrontier
Sat 10/410:49 amSFO - TTN
2 stops19h 43mFrontier
Deal found 9/14$274
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/411:45 amTTN - SFO
2 stops23h 30mFrontier
Sun 10/57:07 pmSFO - TTN
2 stops12h 53mFrontier
Deal found 9/14$295
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2212:30 pmTTN - SFO
2 stops13h 32mFrontier
Fri 9/2611:57 pmSFO - TTN
2 stops30h 35mFrontier
Deal found 9/14$337
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2212:30 pmTTN - SFO
2 stops13h 32mFrontier
Thu 9/255:45 amSFO - TTN
2 stops26h 49mFrontier
Deal found 9/15$357

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Trenton to San Francisco that are best for you.

Fly from

Trenton

Fly to

San Francisco

Route

Depart

Return

Price

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Fri 10/3

12:30 pm-9:21 pm

1 stop11h 51m

San Francisco

Sun 10/5

11:00 pm-11:34 am

1 stop9h 34m

$167

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sun 9/28

10:30 am-1:17 pm

2 stops29h 47m

San Francisco

Thu 10/2

6:29 am-11:34 am

2 stops26h 05m

$243

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Fri 9/26

12:30 pm-9:21 pm

1 stop11h 51m

San Francisco

Sun 9/28

11:00 pm-11:34 am

1 stop9h 34m

$265

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sat 10/4

11:45 am-8:15 am

2 stops23h 30m

San Francisco

Sun 10/5

7:07 pm-11:00 am

2 stops12h 53m

$295

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sun 9/28

10:30 am-9:21 pm

1 stop13h 51m

San Francisco

Sat 10/4

10:49 am-9:32 am

2 stops19h 43m

$306

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Mon 10/6

12:30 pm-9:21 pm

1 stop11h 51m

San Francisco

Fri 10/10

10:23 pm-11:59 pm

2 stops22h 36m

$492

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sat 10/11

8:00 am-9:23 pm

2 stops16h 23m

San Francisco

Fri 10/17

10:23 pm-11:59 pm

2 stops22h 36m

$496

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Thu 9/25

10:30 am-9:21 pm

1 stop13h 51m

$127

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Mon 10/6

12:30 pm-9:21 pm

1 stop11h 51m

$153

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sun 9/28

10:30 am-9:21 pm

1 stop13h 51m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 14 results
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Best time to book a flight from Trenton to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Trenton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Trenton to San Francisco

What is the cheapest month to book a flight from Trenton, New Jersey to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Trenton, New Jersey to San Francisco (average of $276). Flying from Trenton, New Jersey to San Francisco in June is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Trenton to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Trenton, New Jersey to San Francisco?

    A quick flight from Trenton, New Jersey to San Francisco can take about 11h 51m. Frontier provides one of the quickest options available for as low as $167. Trenton, New Jersey and San Francisco are separated by a distance of 2530 mi.

  • Can I find deals for flights from Trenton to San Francisco that include hotel bookings?

    Yes. In addition to deals on Trenton to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trenton to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trenton to San Francisco.

  • Can I find deals for business class flights from Trenton to San Francisco?

    Yes. Cheapflights offers flight deals from Trenton to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Trenton, New Jersey to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Trenton, New Jersey to San Francisco (average of $276). Flying from Trenton, New Jersey to San Francisco in June is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Santa Clara
Manteca
Sunnyvale
Hollister
Vacaville
Foster City
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Vallejo
Burlingame
Redwood City
San Mateo
San Leandro
Lathrop

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